Christoph Hormann wrote in message <3B5C5FFD.2C672F99@gmx.de>...
> Wlodzimierz ABX Skiba wrote:
>> In range from 0.8 to 76.
>
> Hmm, 76 seems fairly high for such shapes, are you sure all the functions
> used are smooth?

There is if() in arm function but it should join smothly - perhaps some accuracy
of calculation creates "jump" on surface.

> You can also try to play with the eval parameters.

I use eval on every trace.

> Randomly occuring artefacts are of course quite strange, but since the
> current isosurface code is known to be buggy, anything is possible...
> Raising the accuracy value could also help.

I'll try

> > Yes. Current value (0.01) was choosed experimentaly. Larger value could be
> > comfortless for sitting :-)
>
> Hey, we are talking about art, comfort is negligible...

But I can't say this to my modeled king ;-)

> > Don't forget idea sended by me to p.b.i as photo some time ago.
>
> Don't remember and could not find a photo from you either, could you point
> me to it?

Subject: proposition for isowood 0.3 :-)  (85 kbu)
Date: Fri, 1 Dec 2000 20:32:11 +0100
Message-ID: <3a28e9f2@news.povray.org>
Xref: news.povray.org povray.binaries.images:43977


--
#macro Sig(A,B,X)_(A,B)_(B,X)_(X,A)#end#macro _(A,B)cylinder{<A.x,A.y,3>,<B.u,
B.v,3>.1,9}#end global_settings{max_trace_level 9}light_source{0 1}camera{up y
*4right-3*x}blob{_(<3,1>,<1,-5>)_(<2,-2>,<4,-2>)Sig(x,<-1,1.5>,<1,3>)_(z-1,z-4
)pigment{rgb 1}}box{-3 3pigment{rgb 0}finish{reflection 1}hollow} // POV-Ray31

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